Uptake of mercury (Hg) by seedlings of rice (Oryza sativa L.) grown in solution culture and interactions with arsenate uptake
文献类型：期刊论文
| 作者 | Liu, WJ; Du, X; Zhu, YG; Zhao, XS |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2005 |
| 卷号 | 54期号:1页码:1-7 |
| 关键词 | Arsenic Hydroponics Interaction Mercury Rice |
| DOI | 10.1016/j.envexpbot.2004.05.001 |
| 英文摘要 | We investigated the mercury (Hg) uptake by seedlings of rice (Oryza sativa L.) grown in solution and interactions between Hg and arsenate uptake. The results showed that increasing Hg2+ concentrations in the nutrient solution decreased both root and shoot biomass. Hg2+ at concentrations of 1.0 and 2.5 mg L-1 caused 50% reduction in root biomass. A 50% reduction in shoot biomass occurred at Hg2+ concentrations of around 0.5 mg L-1. Nevertheless, 0.5 mg As L-1 has no significant effect on plant yield. Hg accumulated in rice roots, and the Hg concentration factor in roots reached nearly 1900 at 2.5 mg Hg L-1. The addition of As slightly increased the Hg concentration in the roots. However, As concentrations in the roots decreased significantly with increasing Hg concentration in the growth solution to 1.0 or 2.5 mg Hg L-1. Shoot As concentrations decreased with increasing Hg concentrations in the growth solution, but increased again with further increase in Hg concentration to 2.5 mg L-1. Possible mechanisms of Hg uptake and interactions between Hg and As in the uptake process are also discussed. (c) 2004 Elsevier B.V All rights reserved. |
| 学科主题 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:000230237400001 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23358]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Liu, WJ,Du, X,Zhu, YG,et al. Uptake of mercury (Hg) by seedlings of rice (Oryza sativa L.) grown in solution culture and interactions with arsenate uptake[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2005,54(1):1-7. |
| APA | Liu, WJ,Du, X,Zhu, YG,&Zhao, XS.(2005).Uptake of mercury (Hg) by seedlings of rice (Oryza sativa L.) grown in solution culture and interactions with arsenate uptake.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,54(1),1-7. |
| MLA | Liu, WJ,et al."Uptake of mercury (Hg) by seedlings of rice (Oryza sativa L.) grown in solution culture and interactions with arsenate uptake".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 54.1(2005):1-7. |
入库方式： OAI收割
来源：生态环境研究中心
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